期刊
ORGANIC LETTERS
卷 23, 期 21, 页码 8407-8412出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.1c03133
关键词
-
资金
- National Natural Science Foundation of China [21462038]
This paper presents a method for the synthesis of benzo[4,5]imidazo[2,1-a]isoquinolines using calcium carbide as a solid alkyne source, 2-(2-bromophenyl)benzimidazoles as starting materials, and copper as a catalyst through Sonogashira cross-coupling/nucleophilic addition tandem reactions. The target products can also be synthesized through one-pot three-component reactions of o-phenylenediamines, o-bromobenzaldehydes, and calcium carbide, and both reaction routes can be scaled up to gram scale.
A method for the synthesis of benzo[4,5]imidazo[2,1-a]isoquinolines through Sonogashira cross-coupling/nucleophilic addition tandem reactions using calcium carbide as a solid alkyne source, 2-(2-bromophenyl)benzimidazoles as starting materials, and copper as a catalyst is described. The target products can also be synthesized through one-pot three-component reactions of o-phenylenediamines, o-bromobenzaldehydes, and calcium carbide. Both reaction routes can also be scaled up to gram scale.
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